Low cement castable refers to the new castable with little binding dose. The key is to use ultrafine particles of no more than 1μm.
Its thermal shock resistance, slag resistance and erosion resistance are significantly improved, surpassing similar refractory bricks. Further reduction of binder content can produce ultra-low cement castable and cement-free castable. Low cement castable refers to castable with low cement content.
The cement content of refractory cement castable is generally 15% to 20%, and the cement content of low cement castable is about 5%, and some even reduce to 1% to 2%. The purpose of reducing the amount of cement is to improve the fire resistance of castable.
(1) Low density
(2) High strength, small amount of water
(3) Wear resistance and erosion resistance
(4) Low porosity
(5) Good volume stability
(6) Good corrosion resistance
Metallurgical industry, petrochemical industry, machinery manufacturing industry, electric power industry and building materials industry
|
Item |
Index |
||
|
JD-170 |
JD-175 |
||
|
Al2O3（%≥） |
65 |
75 |
|
|
CaO（%≥） |
2.5 |
2.58 |
|
|
Body density（g/cm3） |
2.5 |
2.7 |
|
|
Flexural strength(≥Mpa) |
110℃×24h drying |
7.8 |
8.9 |
|
110℃×24h burned |
10 |
15 |
|
|
Compressive strength(≥Mpa) |
110℃×24h drying |
36 |
45 |
|
110℃×24h burned |
68 |
77 |
|
|
Creep rate（%） |
1350±0.5 |
1350±0.5 |
|
|
Refractoriness（℃≤） |
1700℃ |
1750℃ |
|
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Refractory cement, also known as aluminate cement, is a fire-resistant hydraulic cementitious material.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
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White corundum castable is a high-quality high-temperature refractory material with high-purity alumina powder as the main raw material.
High aluminum castable refers to a refractory castable with Al2O3 content greater than 48%.
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Corundum mullite castable is a high-quality high-performance refractory material with high thermal conductivity, insulation, good chemical stability and resistance to reducing agents.
Silicon carbide castable is an amorphous refractory material with silicon carbide as the main component.
Chrome corundum castable is a high-performance amorphous refractory material composed of corundum and chromium. It has high melting point, high hardness, high stability and excellent slag resistance and wear resistance.
high alumina cement is a powder material with alumina (Al2O3) as the main component.
Plastic is an amorphous refractory material in the form of hard mud and has high plasticity.
Refractory spray coating is a kind of amorphous refractory material, which is applied to the lining of thermal equipment by spraying construction method.
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
High temperature and high strength repair material is a special material used to repair equipment and structures in high temperature environments.
High alumina poly light brick is a high quality lightweight refractory material.
High alumina poly light brick is a high quality lightweight refractory material
